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Solution of problem N3296 probability theory
3296. In the urn there are 4 black, 7 red, 9 green and 11 blue balls. From there, took one ball. Find the probability of a colored ball (not black).
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
Massimo86
exceeds: